After from the recent bad bug with "delete a message" which seems to have eaten the first 25 threads from this forum AND from the Poser Forum, I accidentally deleted one of my messages, perhaps by clicking too near the [delete] button, and I had to re-post it. It would be useful if:- (1) The delete-a-message button caused a dialog box asking the user if he really intended to delete the message. (2) There was a distinction between "delete a thread" and "delete one message fom that thread".